A novel cryogenic machining concept based on a lubricated liquid carbon dioxide

被引：32
|
作者：
Grguras, Damir [1 ]
Sterle, Luka [1 ]
Krajnik, Peter [2 ]
Pusavec, Franci [1 ]
机构：
[1] Univ Ljubljana, Fac Mech Engn, Ljubljana, Slovenia
[2] Chalmers Univ Technol, Dept Ind & Mat Sci, Gothenburg, Sweden
来源：
INTERNATIONAL JOURNAL OF MACHINE TOOLS & MANUFACTURE | 2019年 / 145卷
关键词：
Cryogenic machining; Carbon dioxide; Single-channel MQL; Solubility; Cooling; Lubrication; MINIMUM QUANTITY LUBRICATION; SOLUBILITY; PERFORMANCE; OIL; DROPLETS; TOOL; CO2;
D O I：
10.1016/j.ijmachtools.2019.103456
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
A novel single-channel supply of pre-mixed (a) liquid carbon dioxide (LCO2) and (b) oil - delivered via minimum quantity lubrication (MQL) - represents a significant advancement in cryogenic-machining technology. In this proof-of-concept study, an attempt is made to advance the understanding of the oil solubility in LCO2 and to analyze the oil-droplets and their impact on machining performance. The results indicate that the physical and chemical properties of oil distinctively affect its solubility in LCO2. The achieved solubility further influences the achievable oil-droplet size and distribution and tool life.
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页数：6
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